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British English Dictionary (Marco Pinto)
A fork of Mark Tyndall's add-on, based on David Bartlett's
British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey.
V3.3.6 has 140 000+ new words and also fixes.
English United States Dictionary
English United States (en-US) Dictionary as shipped with Thunderbird 115 ESR and Firefox 115 ESR.
German Dictionary
German Dictionary (new Orthography) for spellchecking in Mozilla products
Brazilian Portuguese Dictionary (New Spelling)
The same spellchecker shipped with the Brazilian version of Firefox.
German dictionary (de_DE)
German dictionary igerman98 (de_DE, Germany), for Firefox, Thunderbird und Seamonkey.
Polish Spellchecker Dictionary
Polish spell-check dictionary for Firefox, Thunderbird and SeaMonkey.
Verificador Ortográfico para Português do Brasil
Possui a maioria das palavras existentes em português do Brasil, de acordo com o novo acordo ortográfico que entrou em vigor janeiro de 2009. É Atualizado constantemente.
Precisa de ajuda?
facebook.com/RescueLanguage
rescuelanguage.sf.net
Greek spellchecking dictionary
Greek spellchecking dictionary Mozilla (Firefox- Thunderbird- Seamonkey)
British English Dictionary
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.
To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
To create your own collections, you must have a Mozilla Add-ons account.